SUN HYDRAULICS
DMDASNN298
$192.50 USD
- SUN HYDRAULICS
- Material:DMDASNN298
- Model:DMDA-SNN@298
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DMDASNN298 (DMDASNN298) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. This direct-acting, balanced spool directional valve features a soft shift option that mitigates shock from valve actuation, enhancing system longevity and reducing noise. However, it is not suitable for applications requiring precise timing control such as accurate ramping; in such cases, Sun's electro-proportional valves are recommended. The soft shift model provides a slower response time compared to standard solenoids, typically ranging between 150 ms to 300 ms depending on variables like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The valve requires port 1 to be under positive pressure for optimal soft shift performance and includes a push-type manual override. Note that other manual controls are not compatible with the soft shift feature but can be installed separately. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 5 gpm (20 L/min), and minimal leakage at high pressures. The solenoid tube assembly is fatigue rated for robust performance under demanding conditions. It also uses EPDM seals suitable for phosphate ester fluids but vulnerable to petroleum-based products which can degrade the seals. This valve employs a wet armature design allowing the working fluid to cool the armature, which is crucial when the coil is energized over extended periods. Additionally, it features Sun\u2019s floating style construction minimizing internal parts binding caused by installation torque or machining variations of the cavity/cartridge. Enhanced environmental protection options are available with IP69K rated coil connectors and additional weatherized coils and kits. This model\u2019s efficient magnetic design ensures reliable spool actuating force per Watt expended, making it an effective solution for varied hydraulic applications requiring dependable performance under varying operational conditions.
The Sun Hydraulics DMDASNN298 (DMDASNN298) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. This direct-acting, balanced spool directional valve features a soft shift option that mitigates shock from valve actuation, enhancing system longevity and reducing noise. However, it is not suitable for applications requiring precise timing control such as accurate ramping; in such cases, Sun's electro-proportional valves are recommended. The soft shift model provides a slower response time compared to standard solenoids, typically ranging between 150 ms to 300 ms depending on variables like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The valve requires port 1 to be under positive pressure for optimal soft shift performance and includes a push-type manual override. Note that other manual controls are not compatible with the soft shift feature but can be installed separately. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 5 gpm (20 L/min), and minimal leakage at high pressures. The solenoid tube assembly is fatigue rated for robust performance under demanding conditions. It also uses EPDM seals suitable for phosphate ester fluids but vulnerable to petroleum-based products which can degrade the seals. This valve employs a wet armature design allowing the working fluid to cool the armature, which is crucial when the coil is energized over extended periods. Additionally, it features Sun\u2019s floating style construction minimizing internal parts binding caused by installation torque or machining variations of the cavity/cartridge. Enhanced environmental protection options are available with IP69K rated coil connectors and additional weatherized coils and kits. This model\u2019s efficient magnetic design ensures reliable spool actuating force per Watt expended, making it an effective solution for varied hydraulic applications requiring dependable performance under varying operational conditions.
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.
- The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
- The soft shift feature can greatly reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
- The soft shift feature results in significant increase in response time over Sun's standard solenoid. Response time is dependent on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
- For consistent soft shift performance, port 1 should be at a positive pressure.
- This valve includes a push-type manual override control. Other manual control options such as T or D, cannot be ordered with the soft shift control but can be installed easily in the field. See Twist/Lock Manual Override link above for details. Please note: Manual override functionality is not compatible with weatherized coils.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
- The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
| Cavity | T-11A |
| Series | 1 |
| Capacity | 5 gpm20 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 cc/min.@210 bar |
| Manual Override Force Requirement | 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1 |
| Manual Override Stroke | .10 in.2,5 mm |
| Solenoid Tube Diameter | .75 in.19 mm |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Model Weight | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-411-006 |
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